With continued population growth and development in Central Texas, the number of applications for municipal domestic wastewater permits regulated by the Texas Commission on Environmental Quality (TCEQ) has increased. TCEQ has no nutrient criteria for streams, and applicants are required to provide limited modeling of nutrient impacts. Wastewater permits can affect water quality, threatening the health of receiving waters, and treatment levels are often not set to prevent nutrient concentrations that cause undesirable effects on aquatic life and algae blooms. Discharging effluent may also degrade nearby springs that recharge aquifers and provide habitat for endangered species, such as the Barton Springs and Austin Blind salamanders. While the City of Austin Watershed Protection Department has no regulatory authority over these permits, it has worked to develop a policy for reviewing them, sharing the results with regional partners, and prioritizing wastewater permits of concern, with the goal of nudging applicants and state regulators toward more protective permits. By developing specific review criteria, our department has streamlined its internal review process for permits of concern. And by collaborating with regional stakeholders, we have augmented our resources and inputs into the decision-making process. The presentation will summarize the strategies the Austin Watershed Protection Department has used to address permits of concern, along with the outcomes, ongoing challenges, and future strategies being explored to address wastewater regulatory challenges in the Austin area.